Ignition experts needed

Well, looks like you guys got me pointed the right way. Spent the whole morning checking all connections, cleaned up the bulkhead connections and every other plug in the engine compartment.
Put a voltmeter inline with the switched 12v connection to the box and fired it up.
Got it nice and warmed up, idling fine, revved it thru the RPM range to simulate driving(it's raining). It ran in the garage for a good 20 minutes then started missing a bit, then finally died. Like throwing a switch, man. Voltmeter still 12v.
Tried to restart right away and it just cranked and cranked. No spark at all.
15 minutes later it fired right up but would only idle. Give it some throttle and just sputter........
So, I'm betting it's the friggin pick up in the distrib. I'm calling Accel tomorrow first thing.
You guys think I'm on the right track? Hope so.

Mike